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The Single UNIX &reg; Specification, Version 2<br>
Copyright &copy; 1997 The Open Group

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<h4><a name = "tag_000_005_626">&nbsp;</a>NAME</h4><blockquote>
getpagesize - get the current page size
(<b>LEGACY</b>)
</blockquote><h4><a name = "tag_000_005_627">&nbsp;</a>SYNOPSIS</h4><blockquote>
<pre><code>

#include &lt;<a href="unistd.h.html">unistd.h</a>&gt;

int getpagesize(void);
</code>
</pre>
</blockquote><h4><a name = "tag_000_005_628">&nbsp;</a>DESCRIPTION</h4><blockquote>
The
<i>getpagesize()</i>
function returns the current page size.
<p>
The
<i>getpagesize()</i>
function is equivalent to <i>sysconf</i>(_SC_PAGE_SIZE) and
<i>sysconf</i>(_SC_PAGESIZE).
<p>
This interface need not be reentrant.
</blockquote><h4><a name = "tag_000_005_629">&nbsp;</a>RETURN VALUE</h4><blockquote>
The
<i>getpagesize()</i>
function returns the current page size.
</blockquote><h4><a name = "tag_000_005_630">&nbsp;</a>ERRORS</h4><blockquote>
No errors are defined.
</blockquote><h4><a name = "tag_000_005_631">&nbsp;</a>EXAMPLES</h4><blockquote>
None.
</blockquote><h4><a name = "tag_000_005_632">&nbsp;</a>APPLICATION USAGE</h4><blockquote>
The value returned by
<i>getpagesize()</i>
need not be the minimum value that
<i><a href="malloc.html">malloc()</a></i>
can allocate.  Moreover, the application cannot assume that an
object of this size can be allocated with
<i><a href="malloc.html">malloc()</a></i>.
<p>
This interface, returning an 
<b>int</b>,
may have problems representing
appropriate values in the future. Applications should use the
<i><a href="sysconf.html">sysconf()</a></i>
function instead.
</blockquote><h4><a name = "tag_000_005_633">&nbsp;</a>FUTURE DIRECTIONS</h4><blockquote>
None.
</blockquote><h4><a name = "tag_000_005_634">&nbsp;</a>SEE ALSO</h4><blockquote>
<i><a href="getrlimit.html">getrlimit()</a></i>,
<i><a href="mmap.html">mmap()</a></i>,
<i><a href="mprotect.html">mprotect()</a></i>,
<i><a href="munmap.html">munmap()</a></i>,
<i><a href="msync.html">msync()</a></i>,
<i><a href="sysconf.html">sysconf()</a></i>,
<i><a href="unistd.h.html">&lt;unistd.h&gt;</a></i>.
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UNIX &reg; is a registered Trademark of The Open Group.<br>
Copyright &copy; 1997 The Open Group
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